Fogbank - The Five Syndicates

 When the world fell to flame and fire and war, many fled to the perceived safety of the subterranean world, especially the gargantuan caverns which hold the Blackwaters, a massive underground sea with its own ecology. The greatest of the subterranean cities was Fogbank - so named for the rolling fogs that surround the island most of the time. The island on which the city is built rests in utter blackness, so the dark and the fog are pierced by the bright lights of the city, a city which never sleeps. This is the city of Fogbank, the bright jewel of the Blackwaters, the greatest city under the earth.